As a novice farmer who has been raising sheep for three years, I have always advocated hybrid improvement to improve the breed of sheep, combined with their respective advantages, but is hybrid improvement really only good?
I've found that a lot of sheep breeding articles talk about the benefits of hybridization and avoid the disadvantages of hybridization, so that the price of breeding sheep is higher and higher.
However, recently I had an in-depth chat with a netizen friend and found that if the number of miscellaneous accounts is too high, it may also make our profits not effectively improved.
<h1>Let's talk about the disadvantages of hybridization</h1>
First, it will reduce the reproductive rate of breeding ewes
Let's take the small-tailed cold sheep and the Dubo sheep as an example, our farmers generally use the small-tailed Han sheep ewe as the base ewe, and the Dubo ram as the breeding ram for hybridization. This can improve the growth rate of the next generation, the value of meat and the reproduction rate. Let's collectively call this generation a generation of Du Han. This generation of sheep contains 50% Ofube blood and 50% of the Blood of the Little TailEd Sheep.
Below, we use another generation of Duhan and Dubo breeding rams to hybridize, which also effectively improves the growth rate and meat value of the next generation, but this generation of sheep will contain 75% of Dupo blood and 25% of the small tail han sheep blood. We can call this generation of sheep the second generation of Du Han.
If we use the second generation of Du Han and Du Bo sheep for hybridization, then the third generation of Du Han will be formed, and this kind of Du Han still has almost 88% of the Du Bo blood and 12% of the small tail Han sheep blood. From here, we can find that the bloodline of the small-tailed cold sheep is slowly being lost.
Let's talk about it again
And from the above analysis, we can see that
Therefore, in the process of raising sheep in the usual way, we cannot excessively pursue hybridization, and excessively pursue the quality of breeding rams Although the current Dubo breeding rams are not too pure, but the blood we generally buy accounts for 70% and 80%. Because it's too late for us to match. In this way, if we farmers cross several generations by ourselves, we will find that the reproductive rate of our sheep will slowly decline.
Second, the price of breeding rams is getting higher and higher
Our excessive pursuit of breeding rams will only make the price of breeding rams higher and higher.
Third, compared with the breeding benefits of others, we will lose the confidence of raising sheep
In the final analysis, the selection of sheep breeds is very important, the same is 20 sheep, people have developed to 100 basic ewes in two years, and our 20 development has only developed to fifty or sixty basic ewes in two years, and the huge gap will make our confidence in breeding suffer a huge blow.
Fourth, there are fewer and fewer thoroughbred sheep and it is becoming more and more difficult to find
I visited more than a dozen farmers, for one or two hundred sheep farmers, most of them are hybrid Du Han, wave hybrid, almost can not see the pure breed, they all think that hybridization is better, and directly ignore the shortcomings of hybridization. Only those with thousands of sheep on large farms can see purebreds. And the specific whether it is pure or impure, we can't say it, hybridization makes the pure breed precarious.
All in all, we must control the reproductive rate of our basic ewe, and we cannot let the fertility of the basic ewe decline too much to affect our economic returns.
I am Big Ben, I hope my suggestions are helpful to everyone, like me can pay attention to me, welcome to forward the comments to collect it.
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